Merge branch 'fix/asoc' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6

* 'fix/asoc' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6:
  ASoC: Ensure supplies are maintained for force enabled widgets
  ASoC: WM8994: Improve playback robustness
  ASoC: WM8994: Improve robustness in some use cases
  ASoC: WM8903: Fix mic detection enable logic
  ASoC: WM8903: Fix mic detection register definitions
  ASoC: CX20442: fix wrong reg_cache_default content
  ASoC: Sync initial widget state with hardware

1 files changed, 22 insertions, 1 deletions

diff --git a/sound/soc/soc-dapm.c b/sound/soc/soc-dapm.c
index 8194f150bab7..25e54230cc6a 100644
--- a/sound/soc/soc-dapm.c
+++ b/sound/soc/soc-dapm.c
@@ -712,7 +712,15 @@ static int dapm_supply_check_power(struct snd_soc_dapm_widget *w)
 		    !path->connected(path->source, path->sink))
 			continue;
 
-		if (path->sink && path->sink->power_check &&
+		if (!path->sink)
+			continue;
+
+		if (path->sink->force) {
+			power = 1;
+			break;
+		}
+
+		if (path->sink->power_check &&
 		    path->sink->power_check(path->sink)) {
 			power = 1;
 			break;
@@ -1627,6 +1635,7 @@ EXPORT_SYMBOL_GPL(snd_soc_dapm_add_routes);
 int snd_soc_dapm_new_widgets(struct snd_soc_dapm_context *dapm)
 {
 	struct snd_soc_dapm_widget *w;
+	unsigned int val;
 
 	list_for_each_entry(w, &dapm->card->widgets, list)
 	{
@@ -1675,6 +1684,18 @@ int snd_soc_dapm_new_widgets(struct snd_soc_dapm_context *dapm)
 		case snd_soc_dapm_post:
 			break;
 		}
+
+		/* Read the initial power state from the device */
+		if (w->reg >= 0) {
+			val = snd_soc_read(w->codec, w->reg);
+			val &= 1 << w->shift;
+			if (w->invert)
+				val = !val;
+
+			if (val)
+				w->power = 1;
+		}
+
 		w->new = 1;
 	}